micheledeleon micheledeleon

15-04-2018
Mathematics

contestada

When the radius of a circle is multiplied by a factor of 2 22, by what factor will the area of the circle change?

Respuesta :

Аноним Аноним

18-04-2018

A = pi (r)^2
so with 222r

circle changes by a factor of 222^2

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